A contractor claims Oklahoma State football coach Mike Gundy fired him because the man wore a University of Oklahoma shirt to work at the Gundy's house in Stillwater.

In a breach of agreement lawsuit filed in Payne County court, contractor Brent Loveland claims he lost more than $30,000 in possible income because of the time he devoted to Gundy's home. Gundy and his wife, Kristen, are named as defendants in the case.

Loveland, who lives in Choctaw, is seeking damages more than $10,000.

Loveland's lawsuit says when he showed up to work on the Gundy's house wearing an OU baseball shirt, the Cowboys' coach unleashed a profanity-laden tirade and fired him.

According to the lawsuit, Gundy approached Loveland and said, ‘How dare you come into my house and offend my wife.”

When Loveland asked what he was talking about, Gundy responded “That (expletive) shirt you have on.”

The lawsuit goes on to say Gundy told Loveland “what a lowlife he was, and telling him to ‘pack his (expletive)' and get off his property.”

Loveland claims he offered to turn the shirt inside out and apologize to the Gundys, but Mike Gundy replied by calling him a “stupid idiot” for wearing the OU shirt on “OSU soil.”